Since earlier this year we have been waiting for AMD to release documentation and/or code on the ATI R600 series concerning 3D acceleration so that the open-source Linux drivers can begin to support the newer ATI graphics processors. It has taken longer than expected for AMD to complete and release this information, but it's now available.

Read the full thing at http://www.phoronix.com/scan.php?page=article&item=amd_r600_oss_3d&num=1